I have stuck here with the JavaScript course: loops and condition. Any one got any ideas?

Question

The snail climbs up 7 feet each day and slips back 2 feet each night.
How many days will it take the snail to get out of a well with the given depth?

Sample Input:
31

Sample Output:
6

Explanation: Let's break down the distance the snail covers each day:
Day 1: 7-2=5
Day 2: 5+7-2=10
Day 3: 10+7-2=15
Day 4: 15+7-2=20
Day 5: 20+7-2=25
Day 6: 25+7=32
So, on Day 6 the snail will reach 32 feet and get out of the well at day, without slipping back that night.

Answer 1

Try this
function main() {
var depth = parseInt(readLine(), 10);
//your code goes here
let k = 0
let count = 1
while (k < depth) {
k += 7;
if (k < depth) {
k -= 2
count++
}
}
console.log(count)
}

Answer 2

Your try?
https://www.sololearn.com/discuss/3103982/?ref=app
https://www.sololearn.com/discuss/3102687/?ref=app